I actually believe that you should not get either, and go for the LiteOn 24x. It's got a price that closely rivals (or beats) the TDK, I just bought one from newegg for $128 + shipping, also the performance greatly rivals the Plextor drives. LiteOn's do SD2, as well, which is a plus

Just my $.02, but I think I'm sold on LiteOn now (also got 16x dvd drive in the same order, "the second fastest overall opitcal drive!"

)
- Josh